1. Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, Japan
2. Department of Animal Hygiene, Behavior, and Management, Faculty of Veterinary Medicine, Benha University, Moshtohor, Toukh, Elqaliobiya, Egypt
3. Laboratory of Veterinary Surgery, Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, Japan
4. Laboratory of Animal Science, Department of Applied Biological Science, Setsunan University, Osaka, Japan
5. Hidaka Training and Research Center, Japan Racing Association, Hokkaido, Japan